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Source-backed error-code guide

Reviewed

LG Range F3 Error Code

F3 points to the control-input system rather than proving that a keypad or control board must be replaced. Preserve the code, make sure the control surface is dry and unobstructed, and use LG’s documented power reset once.

Applies to LG range or oven

What the appliance detected

Detected condition

LG says F3 indicates a touch pad sensor key error.

What may contribute

Possible causes

  • A temporary control-input or electronic condition.
  • Moisture, residue, or an object interfering with the normal use of the touch controls on applicable models.
  • An internal keypad, sensor, wiring, connector, or electronic-control issue if F3 returns.

Start conservatively

Safe preliminary checks

Work in order and stop whenever a step is not supported by the documentation for your model.

  1. Record the exact code and model

    • Photograph F3 and record the full model number before clearing the display.
    • Note whether the code followed cleaning, a spill near the controls, or unusual button behavior.

  2. Check only the exterior control surface

    • When the appliance is cool, remove loose objects from the control area and wipe visible moisture or residue using the care method allowed by the model manual.
    • Do not press random key combinations or use liquid cleaner that can run behind the panel.

  3. Use LG’s reset once

    • Turn the range circuit breaker off for 30 seconds and restore power once, as LG directs for F3.
    • If F3 returns, stop resetting the appliance and request service.

Actions not recommended

  • Do not remove the control panel, peel up touch surfaces, or probe keypad circuits.
  • Do not test live voltage, continuity, ribbon cables, or electronic boards as a homeowner step.
  • Do not replace a keypad or control board solely because F3 is displayed.

When to stop and request service

  • Request appliance service if F3 returns after one documented 30-second reset.
  • Stop using the range for sparking, burning odor, scorching, repeated breaker trips, or abnormal heat at the controls.
  • Provide the technician with the exact code, model number, and any recent spill or cleaning history.

Documented source

Official information reviewed

Our summary is based on manufacturer support material and stays within the limits of that material.

Source reviewed by Appliance Help HQ: September 23, 2026.

Appliance Help HQ is an independent informational site and is not affiliated with or endorsed by LG.

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